Results 31 to 40 of about 48,317 (276)

Polyurea-Functionalized Multiwalled Carbon Nanotubes [PDF]

open access: yes, 2005
An in situ polycondensation approach was applied to functionalize multiwalled carbon nanotubes (MWNTs), resulting in various linear or hyperbranched polycondensed polymers [e.g., polyureas, polyurethanes, and poly(urea-urethane)-bonded carbon nanotubes].
Acquah, Steve F. A.   +12 more
core   +1 more source

High index contrast photonic platforms for on-chip Raman spectroscopy [PDF]

open access: yes, 2019
Nanophotonic waveguide enhanced Raman spectroscopy (NWERS) is a sensing technique that uses a highly confined waveguide mode to excite and collect the Raman scattered signal from molecules in close vicinity of the waveguide. The most important parameters
Baets, Roel   +12 more
core   +2 more sources

Depth Profiling of Ion-Implanted 4H–SiC Using Confocal Raman Spectroscopy

open access: yesCrystals, 2020
For silicon carbide (SiC) processed by ion-implantation, dedicated test structure fabrication or destructive sample processing on test wafers are usually required to obtain depth profiles of electrical characteristics such as carrier concentration.
Ying Song   +6 more
doaj   +1 more source

Subsurface Raman Imaging with Nanoscale Resolution [PDF]

open access: yes, 2006
We report on chemically specific, subsurface imaging with high spatial resolution. Using tip-enhanced Raman spectroscopy, we probe carbon nanotubes buried beneath a host dielectric media. We demonstrate our ability to map and resolve specific vibrational
Anderson, Neil   +3 more
core   +2 more sources

Pipeline for the removal of hardware related artifacts and background noise for Raman spectroscopy

open access: yesMethodsX, 2020
Raman spectroscopy is a real-time, non-contact, and non-destructive technique able to obtain information about the composition of materials, chemicals, and mixtures. It uses the energy transfer properties of molecules to detect the composition of matter.
Christian J.F. Bertens   +7 more
doaj   +1 more source

Quantitative analysis of microbicide concentrations in fluids, gels and tissues using confocal Raman spectroscopy. [PDF]

open access: yesPLoS ONE, 2013
Topical vaginal anti-HIV microbicides are an important focus in female-based strategies to prevent the sexual transmission of HIV. Understanding microbicide pharmacokinetics is essential to development, characterization and implementation of efficacious ...
Oranat Chuchuen   +5 more
doaj   +1 more source

Detection and imaging of lipids of Scenedesmus obliquus based on confocal Raman microspectroscopy

open access: yesBiotechnology for Biofuels, 2017
In this study, confocal Raman microspectroscopy was used to detect lipids in microalgae rapidly and non-destructively. Microalgae cells were cultured under nitrogen deficiency.
Yongni Shao   +5 more
doaj   +1 more source

DETERMINATION OF COPPER, ZINC, CADMIUM AND LEAD IN WATER USING CO-PRECIPITATION METHOD AND RAMAN SPECTROSCOPY [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2013
Mn co-precipitation method combined with Raman spectroscopy were used to determine trace heavy metals (copper, zinc, cadmium and lead) in water sample.
YANDE LIU   +4 more
doaj   +1 more source

Widespread abiotic methane in chromitites [PDF]

open access: yes, 2018
Recurring discoveries of abiotic methane in gas seeps and springs in ophiolites and peridotite massifs worldwide raised the question of where, in which rocks, methane was generated.
Etiope, G.   +8 more
core   +1 more source

Discriminant Analysis of Raman Spectra for Body Fluid Identification for Forensic Purposes

open access: yesSensors, 2010
Detection and identification of blood, semen and saliva stains, the most common body fluids encountered at a crime scene, are very important aspects of forensic science today.
Vitali Sikirzhytski   +2 more
doaj   +1 more source

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